Heart of the Volcano

We decided to play this map with a friend as an alternative to Absolute Power... usually, we play maps focused on a single hero.
The difficulty was also increased by the fact that we are playing in EWA - by the way, the map works quite correctly on it. But with such strong creature packs, it is very, very difficult to level up - we played for about 8 hours, I reached level 20, and my friend reached level 18. We haven't left our starting location yet - I'm being held back by a pack of Ice Undead with "Freezing Cold"... I think there's at least ten more hours of gameplay left - although it's not a fact that we'll reach the PvP stage - most likely, sooner or later, one of us will be overwhelmed by the next overpowered pack...
In general, the map is interesting, but very difficult - probably the most difficult to level up of all the maps I've played. Usually, a campaign takes from three to ten hours - here, in that time, we haven't even managed to leave the starting location.